Feat: CI build and commit generated font

.github/workflows/build-font.yml

@@ -0,0 +1,42 @@
+name: Build and Commit StainFont
+
+on:
+  push:
+    branches: [ "master", "main" ]
+  workflow_dispatch: {}
+
+jobs:
+  build-font:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - name: Install dependencies
+        run: npm ci || npm install
+
+      - name: Build font
+        run: npm run build:font
+
+      - name: Commit generated fonts
+        run: |
+          if [ -n "$(git status --porcelain dist)" ]; then
+            git config user.name "github-actions[bot]"
+            git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+            git add dist
+            git commit -m "chore: build StainFont Basic"
+            git push
+          else
+            echo "No changes in dist; skipping commit."
+          fi